APRILIA SXV450 - 2007 Manual page 14

ANTIHUPPING CLUTCH
DISASSEMBLY OF THE CLUTCH FROM THE
ENGINE
Remove the six screws that secure the ergal flange.
Remove the ergal flange.
Lock the clutch with the lock wrench (provided) and
remove the nut.
Pull out the clutch unit from the main shaft of the gear
box and continue the disassembly on the bench.
Remove the central cup.